by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material

Full Title

Silicon; Compounds thereof > Silicon > Preparation > by decomposition or reduction of gaseous or vaporised silicon compounds other than silica or silica-containing material

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

INORGANIC CHEMISTRY

Subclass:

NON-METALLIC ELEMENTS; COMPOUNDS THEREOF

Child Classifications

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• C01B 33/029 by decomposition of monosilane
• C01B 33/03 by decomposition of silicon halides or halosilanes or reduction thereof with hydrogen as the only reducing agent
• C01B 33/033 by reduction of silicon halides or halosilanes with a metal or a metallic alloy as the only reducing agents
• C01B 33/035 by decomposition or reduction of gaseous or vaporised silicon compounds in the presence of heated filaments of silicon, carbon or a refractory metal, e.g. tantalum or tungsten, or in the presence of heated silicon rods on which the formed silicon is deposited, a silicon rod being obtained, e.g. Siemens process